York Millennium YCAJ150, Installation Operation & Maintenance, Page: 95 / 116

FORM 150.65-NM4
95 YORK INTERNATIONAL
LD02100
FIG. 34 – ASSEMBLY AND WIRING
Parts
The following parts are required:
1. Weigh-Tronix IMP-24, Model 2600 printer.
2. 2.25" wide desk top calculator paper.
3. 25 ft. (7.6 m) Twisted Pair Shielded Cable (minimum
3 conductor), # 18 AWG Stranded, 300V min. insu-
lation.
4. (1 ea.) 25pin Cannon connector and shell. Connec-
tor: Cannon P/N DB-25P or equivalent. Shell: Can-
non P/N DB-C2-J9.
Assembly and Wiring
All components should be assembled and wired as fol-
lows in Fig. 34. Strip the outside insulation back several
inches and individual wires about 3/8" (10 mm) to con-
nect the cable at the Micro Logic Board. Connect the
shield of the cable as shown on the Micro Logic Board.
Do not connect at the printer end of the cable.
Printer Configuration
2 Switches on the printer must be properly configured.
Remove the paper roll to access these switches. Place
the switches in the following positions:
SW. 1 OFF
SW. 2 ON
Obtaining a Printout
A printout of current operating data may be obtained by
pressing the OPER DATA key. A snapshot will be taken
by the micro of current operating conditions. These con-
ditions will be stored in memory until they can be trans-
mitted to the printer and printed. A sample printout is
shown in Fig. 21 on page 67.
A printout of the fault shutdown history may be obtained
by pressing the HISTORY key. A printout showing the
last 3 faults with all system conditions at the time of the
fault will be transmitted. A sample printout is shown in
Fig. 22 on page 68.
An automatic printout will be sent to the printer when-
ever the chiller shuts down on a fault, regardless of
whether the fault causes a system or the entire chiller to
lockout or whether restart is permitted. This is the same
printout that is obtained when the OPER DATA Key is
pressed, however it will be a snapshot of system operat-
ing conditions at the instant fault occurred. Additionally,
the Status indication that is noted in the printout will
note the specific fault that occurred.
Using Other Printers
Control codes vary from printer to printer. This will result
in unusual formatting of printed data from many printers.
In addition, “handshaking” lines and “handshaking” se-
quence will differ between printers. This makes the equip-
ment susceptible to operation problems or mis-wiring
which may cause damage to the printer or the Micropro-
cessor Board. YORK assumes no responsibility for as-
sistance or damage in the use of non-specified printers.
Warranty
YORK assumes no warranty responsibility in the use of
the printer. This includes damages to the printer and the
Microprocessor Boards or chiller operation problems
which may result.